When testing hypotheses about and constructing confidence intervals for μ1 − μ2, we utilize the statistic, 
. What are the mean and variance of the sampling distribution of 
?
Definitions:
International Monetary Fund
An international organization dedicated to fostering global monetary cooperation, securing financial stability, and facilitating international trade.
Founded
The act of establishing something (e.g., a company, organization, or institution) usually at a specific date.
Gold Standard
A monetary system where a country's currency or paper money has a value directly linked to gold, ensuring that the government could redeem any amount of paper money for its value in gold.
Federal Reserve Board
The governing body of the Federal Reserve System, responsible for overseeing the United States' central banking system.
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